1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Y_Kistochka [10]
4 years ago
13

About 1.2 billion years ago, eukaryotic and multicelled organisms evolved because _____.

Geography
1 answer:
Free_Kalibri [48]4 years ago
5 0
The correct answer for the question that is being presented above is this one: "oxygen became available from cyanobacteria." About 1.2 billion years ago, eukaryotic and multicelled organisms evolved because oxygen became available from cyanobacteria.
You might be interested in
For centuries, Arab Muslims had generally welcomed Christian pilgrims to the Holy Land. Which group later took control of the Ho
luda_lava [24]
The group that later took control of the Holy Land, attacked pilgrims, and led Pope urban to call for the crusades was the Seljuk Turks. The correct answer is C.
3 0
3 years ago
Which of the following states was formed by continuous volcanic lava flow
oksano4ka [1.4K]
C. Hawaii

plz mark me BRAINLIEST:))
3 0
2 years ago
Read 2 more answers
Create and answer two questions about aurora borealis
Bumek [7]

Two questions which arises in my mind about aurora borealis are:

  1. Why does aurora borealis occur?
  2. Why does aurora borealis occur in a particular time of the year?

Answers:

  1. As solar wind approaches the Earth, it meets the Earth's magnetic field. In the ionosphere, the ions of the solar wind collide with atoms of oxygen and nitrogen from the Earth's atmosphere. The energy released during these collisions causes aurora borealis.
  2. Aurora borealis is active the whole year. Since it needs to be dark in order to see aurora borealis in the sky, late August/September through the very beginning of April is the best time to go to a destination located in the aurora zone for a chance to see them.

Note: These are the questions which arises in my mind only. It may differ from person to person.

Hope you could understand.

If you have any query, feel free to ask.

4 0
2 years ago
Read 2 more answers
How should an outline look like?
frosja888 [35]
Here is an example! Hope it helps

6 0
3 years ago
Which of the following factors does NOT contribute to Turkey's economy?
Lana71 [14]

Answer:

oil

Explanation:

  • The turkey is a producer of natural oil and gas but the state-owned TPAO is not sufficient enough to make or contribute to the economy through turkey is a major export of apparel, textile, and manufactured transport equipment.
  • Turkey imports machinery chemicals, semi-finished goods and fuel. The agriculture and manufacturing sector are the most dominant sectors.
4 0
3 years ago
Other questions:
  • How did the magnetic compass help traders?
    6·1 answer
  • Anna has 2 purple lipsticks, 3 red lipsticks and 3 pink lipsticks in her kit. She picks one lipstick, records its color, puts it
    15·1 answer
  • Water,forests,and wildlife are renewable resources because
    12·1 answer
  • Roles the troposphere plays in the maintenance of life on Earth​
    6·1 answer
  • Contour plowing is an appropriate use of land as it reduces runoff. <br><br> options: True False
    14·1 answer
  • Differences between Remote sensing and GPS?​
    9·1 answer
  • Why did plantation owners of Saint Domingue use cruel and ruthless methods of treatment toward enslaved persons?
    9·2 answers
  • Deposited sand often in a hook shape
    10·1 answer
  • Which of these is a common economic activity in ALL of this region​
    8·2 answers
  • Bro 8th grade is so hard help!
    9·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!